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Thread View: borland.public.cppbuilder.internet.socket
4 messages
4 total messages Started by David Pratt Wed, 28 Feb 2007 01:09
How to determine what port to use?
#1201
Author: David Pratt
Date: Wed, 28 Feb 2007 01:09
5 lines
1159 bytes
  I have been researching this for a couple of days, and as the subject line 
suggests, am new to network programming.  Trying to figure out what the 
parameters/standards on winsock port numbers are, how they are determined 
and what they are used for, etc.  Any tutorials out there or guidance to 
such would be much appreciated. 
Re: How to determine what port to use?
#1200
Author: Eduardo Jauch
Date: Wed, 28 Feb 2007 01:25
11 lines
1505 bytes
David Pratt escreveu:
>   I have been researching this for a couple of days, and as the subject line 
> suggests, am new to network programming.  Trying to figure out what the 
> parameters/standards on winsock port numbers are, how they are determined 
> and what they are used for, etc.  Any tutorials out there or guidance to 
> such would be much appreciated. 

If you look on google and search for "winsock tutorial" you will find 
lots of stuff. Some are really good :)

Eduardo
Re: How to determine what port to use?
#1204
Author: Bob Gonder
Date: Wed, 28 Feb 2007 02:25
25 lines
1999 bytes
David Pratt wrote:

>  I have been researching this for a couple of days, and as the subject line 
>suggests, am new to network programming.  Trying to figure out what the 
>parameters/standards on winsock port numbers are, how they are determined 
>and what they are used for, etc.  Any tutorials out there or guidance to 
>such would be much appreciated. 

If for internal useage, just about any non-standard port should
suffice (unless, of course, you are trying to do standard stuff).

If you are out to build a large international app, then you might
register with iana

For my app, I selected a large unused port as my default, but allowed
the user to set their own in case of in-the-field conflicts.

The keeper of the ports:
http://www.iana.org/assignments/port-numbers

Something that came up with Google "tcp/ip ports":
http://www.chebucto.ns.ca/~rakerman/port-table.html

Well-Known TCP Port Numbers:
http://www.webopedia.com/quick_ref/portnumbers.asp
Re: How to determine what port to use?
#1205
Author: David Pratt
Date: Wed, 28 Feb 2007 03:24
33 lines
2299 bytes
"Bob Gonder" <notbg@notmindspring.invalid> wrote in message 
news:mcp9u2ltre7ltdjcvigv5u26o2uas8i6mq@4ax.com...
> David Pratt wrote:
>
>>  I have been researching this for a couple of days, and as the subject 
>> line
>>suggests, am new to network programming.  Trying to figure out what the
>>parameters/standards on winsock port numbers are, how they are determined
>>and what they are used for, etc.  Any tutorials out there or guidance to
>>such would be much appreciated.
>
> If for internal useage, just about any non-standard port should
> suffice (unless, of course, you are trying to do standard stuff).
>
> If you are out to build a large international app, then you might
> register with iana
>
> For my app, I selected a large unused port as my default, but allowed
> the user to set their own in case of in-the-field conflicts.
>
> The keeper of the ports:
> http://www.iana.org/assignments/port-numbers
>
> Something that came up with Google "tcp/ip ports":
> http://www.chebucto.ns.ca/~rakerman/port-table.html
>
> Well-Known TCP Port Numbers:
> http://www.webopedia.com/quick_ref/portnumbers.asp
>
  Thanks so much, Bob. Precisely what I was looking for.  I would rather not 
muck around with reserved ports and inadvertantly crash my system through 
ignorance 
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